Biology Concepts and Connections Custom Edition for Everett College
2nd Edition
ISBN: 9781269968904
Author: Campbell
Publisher: PEARSON C
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Chapter 45, Problem 8TYU
DRAW IT In mammals, milk production by mammary glands is controlled by prolactin and prolactin-releasing hormone. Draw a simple sketch of this pathway, including glands, tissues, hormones, routes for hormone movement, and effects.
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DRAW IT In mammals, milk production by mammary glandsis controlled by prolactin and prolactin-releasing hormone.Draw a simple sketch of this pathway, including glands, tissues,hormones, routes for hormone movement, and effects.
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Chapter 45 Solutions
Biology Concepts and Connections Custom Edition for Everett College
Ch. 45.1 - How do response mechanisms in target cells differ...Ch. 45.1 - Prob. 2CCCh. 45.1 - Prob. 3CCCh. 45.2 - What are the roles of oxytocin and prolactin in...Ch. 45.2 - How do the two fused glands of the pituitary gland...Ch. 45.2 - WHAT IF? 2192 Propose an explanation for why...Ch. 45.2 - what if? Lab tests of two patients, each...Ch. 45.3 - If a hormone pathway produces a transient response...Ch. 45.3 - Prob. 2CCCh. 45.3 - Prob. 3CC
Ch. 45 - Prob. 45.1CRCh. 45 - Prob. 45.2CRCh. 45 - Prob. 45.3CRCh. 45 - Which of the following is not an accurate...Ch. 45 - Prob. 2TYUCh. 45 - Growth factors are local regulators that (A) are...Ch. 45 - Prob. 4TYUCh. 45 - Prob. 5TYUCh. 45 - Which of the following is the most likely...Ch. 45 - The relationship between the insect hormones...Ch. 45 - DRAW IT In mammals, milk production by mammary...Ch. 45 - Prob. 9TYUCh. 45 - Prob. 10TYUCh. 45 - Level 3: Synthesis/Evaluation 11. WRITE ABOUT A...Ch. 45 - Prob. 12TYU
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- Which of the following stimulate the secretion of hormones? a. neural signals b. local chemical changes c. hormonal signals stimulate hormone secretion d. environmental cues e. all of the above canarrow_forwardResearchers measured prolactin and growth hormone in the blood plasma of six subjects at regular intervals over a 24-hour period. The investigators were interested in determining if the levels of these two hormones cycle over a 24-hour period. The Figure presents the results of their experiments, with the y axis values showing the amount of each hormone expressed as a percentage of the 24-hour mean value, and each point showing the average of the six subjects levels. FIGURE Mean concentrations of prolactin and growth hormone in plasma, averaged for six subjects and expressed as a percentage of the average concentrations measured for the 24-hour period. Do the results support the hypothesis that the changes in prolactin level over a 24-hour period are associated with the sleepwake cycle? Source: From J. F. Sassin et al. 1972. Human prolactin: 24-hour pattern with increased release during sleep. Science 177:12051207.arrow_forwardVisit this link (http://openstaxcollege.org/l/roleofhypo) to watch an animation showing the role of the hypothalamus and the pituitary gland. Which hormone is released by the pituitary to stimulate the thyroid gland?arrow_forward
- One of the main endocrine glands in the human body is the pituitary gland. This gland produces a variety of hormones with different effects. Among these are a heterogeneous group of hormones called tropic hormones, which directly stimulate the secretion of other hormones from downstream endocrine glands. Which of the following are tropic hormones? Select all that apply. LH Prolactin Oxytocin ACTH TSH testosteronearrow_forwardHormone release and regulation is a complex interplay of control systems, feedback pathways and the concentration of circulating substances. Demonstrate your understanding of how negative feedback systems work by considering what would happen if the usual mechanisms no longer applied. You may like to think about an ectopic source of adrenocorticotropic hormone (ACTH), as secreted from a small cell carcinoma of the lung, as an example. In your explanation of how negative feedback systems can be derailed, describe how hormone/s released from the target endocrine organ usually regulate the feedback loop.arrow_forwardThe diagram below shows the feedback pathway for cortisol. Identify: the glands in boxes A and C the hormone released at B and D the 2 effects of hormone D for box E the type of feedback at work in Farrow_forward
- Which of the following statements about the half-life of hormones is correct? a) Hormones with a short half-life are present in relatively constant amounts in the blood b) Hormones with a short half-life regulate slow functions c) Fat-soluble hormones usually have a relatively long half-life d) Fat-soluble hormone is rapidly broken down by enzymes in the blood circulation e) Water-soluble hormones usually bind to plasma proteins (transport proteins)arrow_forwardCompare and contrast how the endocrine and neural systems do long- distance communication within the mammalian body. State and be able to recognize the roles of neurons and various types of glia (astrocytes, oligodendrocytes, Schwann cells, microglia). Give two mechanisms for how different target cells exposed to the same hormone can respond in different ways. Predict how perturbations to the hypothalamus, pituitary gland, thyroid, the hormones they secrete, or iodine levels will affect hormone levels, thyroid size, metabolic rate, and intelligence in children. Distinguish between asexual and sexual reproduction. Discuss how the environment, sex chromosomes, sex- determination genes, hormone levels, and anatomical features can contribute to sex determination in people or other organismarrow_forwardWhat role do feedback mechanisms play in the regulation of hormone production in mammals? Give two examples of hormonal feedback patterns.arrow_forward
- Fill in the table, to do this, list the hormones and the peculiarities of the implementation of their hormonal signal in the cell, produced by the following endocrine glands and regulating the metabolism of carbohydrates. Endocrine gland name Hormone name Features of transmission by the hormone of its signal Pancreas Anterior pituitary gland Adrenal medulla Adrenal cortexarrow_forwardT3 - For the hormone T3 (in humans) what is; 1. the origin (gland that secretes the hormone) 2. action of the hormone 3. source of control (how is the hormone regulated)arrow_forwardList the major chemical classes of hormones found in the human body. Compare and contrast the mechanism of response that each class elicitsarrow_forward
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